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Light hadron masses from lattice quantum chromodynamics on asymmetric lattices with improved actions
Liu, CA; Ma, JP; Liu, CA , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
2002
发表期刊CHINESE PHYSICS LETTERS
ISSN0256-307X
卷号19期号:5页码:640-643
摘要We simulate lattice quantum chromodynamics on asymmetric lattices with improved actions, where quenching approximation is used. These lattices have a spatial lattice spacing a. at 0.3 and 0.4 fm, and a temporal lattice spacing at from 0.14 to 0.08 fm. The lattice spacing error due to a, is greatly reduced through improving both quark and gluon actions at a certain level. We find that masses of mesons have weak dependence on both lattice spacings, while the a(s) and a(t) dependence for baryons is more significant. With suitable modelling of these dependences, we are able to obtain the nucleon mass in agreement with the experiment.
部门归属Peking Univ, Dept Phys, Beijing 100871, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Glueball Spectrum Qcd
学科领域Physics
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收录类别SCI
WOS记录号WOS:000175791300010
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13520
专题理论物理所SCI论文
通讯作者Liu, CA , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
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Liu, CA,Ma, JP,Liu, CA , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.. Light hadron masses from lattice quantum chromodynamics on asymmetric lattices with improved actions[J]. CHINESE PHYSICS LETTERS,2002,19(5):640-643.
APA Liu, CA,Ma, JP,&Liu, CA , Peking Univ, Dept Phys, Beijing 100871, Peoples R China..(2002).Light hadron masses from lattice quantum chromodynamics on asymmetric lattices with improved actions.CHINESE PHYSICS LETTERS,19(5),640-643.
MLA Liu, CA,et al."Light hadron masses from lattice quantum chromodynamics on asymmetric lattices with improved actions".CHINESE PHYSICS LETTERS 19.5(2002):640-643.
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